Across
- 3. - Distant energy
- 6. - Power source
- 8. - Floating water
- 9. - Star cluster
- 12. - Study of life
- 13. - Reef builder
- 15. - Red planet
Down
- 1. - Genetic code
- 2. - Moon-related
- 4. - Colorful arc
- 5. - Erupting mountain
- 7. - Ancient remains
- 10. - Tiny particle
- 11. - Celestial overlap
- 14. - Attracts metal